NXP PIP8000FHN數(shù)字電源監(jiān)視方案

NXP公司的PIP8000FHN是兼容電源管理總線(PMbus)協(xié)議的數(shù)字電源監(jiān)視IC，通過主系統(tǒng)進行配置，以滿足多模式電源的動態(tài)轉換器的性能。PIP8000FHN的工作電壓為2.4 V 到3.6 V，I/O引腳5V容差。I2C總線的頻率高達400kHz。PIP8000FHN可用在DC分布電源系統(tǒng)，網(wǎng)絡應用，服務器及其附件，通信設備，工業(yè)/ATE電源，存儲系統(tǒng)以及AC/DC與DC/DC轉換器。本文介紹了PIP8000FHN 主要特性，方框圖以及典型應用框圖。

The PIP8000FHN is a Power Management Bus (PMBus) protocol compliant, digital power supervisor IC, configurable through a host system to meet dynamic converter performance for a multitude of power supply applications. The PIP8000FHN is able to manage power supply operating conditions as well as to monitor and report the status back to a host system using the PMBus protocol.

The PMBus standard uses the widely accepted Inter-Integrated Circuit (I2C) communication protocol for the hardware interface. A number of additional features are added to enhance the basic I2C communication protocol. These are described in the System Management Bus (SMBus) protocol and include SMAlert.

PIP8000FHN 主要特性：

PMBus serial interface:

Query I/O voltage, I/O current, warnings, faults

Query temperature for up to two temperature sensors

Configure and measure RPM for up to two fans

Sequence start-up and turn-off

Configurable 7-channel A/D with calibration factors

I2C device-address pin stripping

Compatible with most analog controllers

Power-on reset

I2C-bus up to 400 kHz

2.4 V to 3.6 V VDD operating range

5 V tolerant I/O pins

Thermal sense capabilities

28 pin HVQFN package, 6 mm x 6 mm

PIP8000FHN 應用：

PMBus compliant low voltage, high current density applications

DC power distributed systems

Networking applications

Servers and server accessories

Telecommunication systems

Industrial / ATE power applications

Storage systems

AC/DC and DC-to-DC applications

圖1。PIP8000FHN方框圖

　　

圖2。PIP8000FHN應用框圖